package com.itheima.d3_collection_test.Exercise;



/**
 * @ClassName Demo
 * @Author 16799
 * @Date 2025/8/9 22:02
 * @Version 1.0
 * @Description TODO
 *
 * 自己写一遍
 **/
public class Demo {
    public static void main(String[] args) {
        room a = new room();

        a.start();
    }
}
